MT20RNL Battery Adapter for Convert Makita 18V Li-ion Battery to RYOBI 18V ONE+ Li-ion Battery Replacement for Ryobi Tool Use
Amazon.com: MT20RNL Converter for Makita to Ryobi Battery Adapter, Convert for Makita 18v Battery to Ryobi 18v One+ Plus Lithium Batteries, Use for Ryobi 18 Volt Cordless Power Tools : Tools &